https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Deformation Mechanisms in Orogenic Gold Systems During Aseismic Periods: Microstructural Evidence from the Central Victorian Gold Deposits, Southeast Australia https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:50156 Wed 05 Jul 2023 15:21:15 AEST ]]> Influence of reactor composition on the thermal decomposition of perfluorooctanesulfonic acid (PFOS) https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:54420 Tue 27 Feb 2024 13:52:27 AEDT ]]> An algebraic approach to cooperative rotations in networks of interconnected rigid units https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:43114 Tue 13 Sep 2022 14:04:23 AEST ]]> The role of moisture cycling in the weathering of a quartz chlorite schist in a tropical environment: findings of a laboratory simulation https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:603 Thu 25 Jul 2013 09:10:24 AEST ]]> Removal of fine quartz from coal-series kaolin by flotation https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:31203 d90 = 15.8 μm) closely associated with this CSK sample was the major impurity mineral, which cannot be separated from kaolin by screening and size classification process. This work investigated the separation of fine quartz from kaolin by flotation. Single mineral flotation tests indicated that effective separation of quartz from kaolin was possible with acidic pH value (pH = 3), depressant of starch and collector of dodecyl amine (DDA). Rougher flotation tests of coal-series kaolin revealed that the SiO2/Al2O3 weight ratio of the concentrate was qualified for industrial applications in the presence of 160 g/t starch and 100 g/t DDA, at acidic pH pulp. A specially designed two-stage cleaner flotation flowsheet increased the concentrate recovery from 37.26% to 46.55% compared to a rougher flotation process.]]> Sat 24 Mar 2018 08:44:46 AEDT ]]> Thallium and manganese complexes involved in the luminescence emission of potassium-bearing aluminosilicates https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26979 2+ in good agreement with the observed luminescence emission at 560 nm for aluminosilicates produced by a ⁴T1(⁴G)→⁶A1(⁶S) transition in tetrahedrally coordinated Mn2+. Moscovite samples display spectral CL bands at 285 and 560 nm but only when the electron-beam is directed along the (0 1 0) orientation and not along the (0 0 1) orientation. The Tl⁺ versus K⁺ cation isomorphism anchors the luminogenous hydrous thallium–manganese complexes to the potassium-bearing aluminosilicate surfaces under analyses. The CL emission bands at 285 and 560 nm of these complexes together with the EDS detection of thallium are a fast analytical measurement detecting the presence of thallium in further studies involving this toxic element.]]> Sat 24 Mar 2018 07:26:58 AEDT ]]> Dispersion stability of a ceramic glaze achieved through ionic surfactant adsorption https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:3145 Sat 24 Mar 2018 07:18:17 AEDT ]]>